Browse our veterinary-reviewed Dog and Cat Illness Guide to learn more about pet health. Always talk to your veterinarian if you have a concern about your pet's symptoms or health.
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Epiphora is excessive tearing. Extra tearing from time to time is normal, but if it is constant, you should visit your veterinarian as soon as possible. All that moisture can cause pain, infection and staining (tears have no color, but they dry into a red, brown or black crust, which will stain your cat's hair and face).
The staining itself is not a medical problem; it just does not look nice.
Eventually, it may cause vision loss. For some breeds, epiphora is not harmful.
1) Irritation to the eye: The eye's normal response to irritation is to produce extra tears to flush it away. An overproduction of tears overwhelms the drainage system.
Examples of irritants (can be a foreign object or an irritation in the eye):
2) Abnormal tear drainage: In a healthy eye, tears flow through the puncta (a tear duct located in the inner corner of the eye near the nose) that drains the tears into the pet's nose and throat. Problems along this route can cause epiphora.
3) Overactive tear glands (least common)
If your cat is showing any of these signs, this is an emergency and you should visit your veterinary clinic right away. It is especially important if the signs occur suddenly.
Your veterinarian may perform some tests to rule out other diseases. A corneal stain, (a fluorescent dye placed in the eye), can test for ulcers.Your veterinarian may also test your cat's eye pressure to see if it has glaucoma.
You veterinarian will perform the following procedures to test for epiphora:
Most of the time, you will not be aware of your cat's condition until you start to see signs of epiphora, so there is no way to prevent it.
To prevent a relapse, wash and dry around the eyes daily using lukewarm water and a soft cloth.
There is a good prognosis for cats that get quick medical attention and treatment. Delaying treatment may lead to blindness.
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